Add a class to replace ImageLoadingTracker with a nicer API.

chrome/browser/extensions/extension_protocols.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/extension_protocols.h"
 
 #include <algorithm>
 
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/threading/worker_pool.h"
 #include "build/build_config.h"
 #include "chrome/browser/extensions/extension_info_map.h"
-#include "chrome/browser/extensions/image_loading_tracker.h"
+#include "chrome/browser/extensions/image_loader.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_file_util.h"
 #include "chrome/common/extensions/extension_resource.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/resource_request_info.h"
 #include "extensions/common/constants.h"
 #include "googleurl/src/url_util.h"
 #include "grit/component_extension_resources_map.h"
@@ skipping 339 matching lines @@
   // directory_path is a descendant of resources_path. resources_path
   // corresponds to src/chrome/browser/resources in source tree.
   if (PathService::Get(chrome::DIR_RESOURCES, &resources_path) &&
       // Since component extension resources are included in
       // component_extension_resources.pak file in resources_path, calculate
       // extension relative path against resources_path.
       resources_path.AppendRelativePath(directory_path, &relative_path)) {
     FilePath request_path =
         extension_file_util::ExtensionURLToRelativeFilePath(request->url());
     int resource_id;
-    if (ImageLoadingTracker::IsComponentExtensionResource(extension,
+    if (extensions::ImageLoader::IsComponentExtensionResource(extension,
         request_path, &resource_id)) {
       relative_path = relative_path.Append(request_path);
       relative_path = relative_path.NormalizePathSeparators();
       return new URLRequestResourceBundleJob(
           request,
           network_delegate,
           relative_path,
           resource_id,
           content_security_policy,
           send_cors_header);
     }
   }
 
   return new URLRequestExtensionJob(request,
                                     network_delegate,
                                     extension_id,
                                     directory_path,
                                     content_security_policy,
                                     send_cors_header);
 }
 
 }  // namespace
 
 net::URLRequestJobFactory::ProtocolHandler* CreateExtensionProtocolHandler(
     bool is_incognito,
     ExtensionInfoMap* extension_info_map) {
   return new ExtensionProtocolHandler(is_incognito, extension_info_map);
 }